Fusion of conformal defects in four dimensions
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Publication:2032513
DOI10.1007/JHEP04(2021)087zbMATH Open1462.81123arXiv2102.00718MaRDI QIDQ2032513
Author name not available (Why is that?)
Publication date: 11 June 2021
Published in: (Search for Journal in Brave)
Abstract: We consider two conformal defects close to each other in a free theory, and study what happens as the distance between them goes to zero. This limit is the same as zooming out, and the two defects have fused to another defect. As we zoom in we find a non-conformal effective action for the fused defect. Among other things this means that we cannot in general decompose the two-point correlator of two defects in terms of other conformal defects. We prove the fusion using the path integral formalism by treating the defects as sources for a scalar in the bulk.
Full work available at URL: https://arxiv.org/abs/2102.00718
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